President Trump has discussed painting the planes red, white and blue

Boeing Co. on Tuesday secured a $3.9 billion deal to build the new jets that will fly as Air Force One, with only one wrinkle yet to be resolved: their color.

The award follows 18 months of an at times tortuous to-and-fro between the aerospace giant and President Donald Trump, who had threatened to cancel the planned sale over concerns about the cost of replacing the aging 747 jumbo jets.